How to install configure Redis on Rocky Linux / Centos 8

 In this tutorial, How to learn install configure Redis on rocky Linux / Centos 8.

What is Redis Server?

Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache, and message broker from https://redis.io/

Install configure Redis on Rocky Linux / Centos 8

Step 1: Update your Rocky Linux/Centos 8 Server 

sudo dnf -y update

Step 2: Install Redis Server
 

I will use remi release to install Redis module

  sudo dnf install -y https://rpms.remirepo.net/enterprise/remi-release-8.rpm

List redis using command below

   sudo dnf module list redis

Enable redis 6

   sudo dnf module enable redis:remi-6.2 -y

In Redis Server.

  sudo dnf install redis

 

Start/Enable Redis Server.

sudo systemctl start redis
sudo systemctl enable redis
sudo systemctl status redis

Configuring Redis

The redis configure file located in path /etc/redis/redis.conf
In this section, I will update the redis configure allow remote access, to set an Authentication password, to add a pid file and to Set Persistent Store for Recovery.

Edit config file as below:

  sudo vi /etc/redis/redis.conf

To allow remote access to the redis instance.

   bind 0.0.0.0

Set password in Redis

  requirepass devopsroles.com

Add a pid file.

  pidfile /var/run/redis/redis-server.pid

Set Persistent Store for Recovery

   appendonly yes
   appendfilename "appendonly.aof"

Restart to apply changes:

  sudo systemctl restart redis

Connecting to redis locally, check redis information as commnad below

  $ redis-cli
  127.0.0.1:6379> auth devopsroles.com
  127.0.0.1:6379> INFO

 

Performing Redis Benchmarking against local redis to test its performance. For example, run the benchmark with 20 parallel connections

  $ redis-benchmark -h 127.0.0.1 -p 6379 -n 10000 -c 20 -a devopsroles.com